Methods for dynamic harq-ack codebook with multiple sub-codebooks

A User Equipment (UE), comprising:

• a radio;
• and
• a processing circuit,
• the processing circuit being configured to:
• receive one or more first transmissions;
• decode the first transmissions, to generate a first sub-codebook comprising one or more corresponding Hybrid Automatic Repeat Request Acknowledgement (HARQ ACK) bit strings each having a first length;
• receive one or more second transmissions;
• decode the second transmissions, to generate a second sub-codebook comprising one or more corresponding HARQ ACK bit strings each having a second length, greater than the first length;
• receive one or more third transmissions;
• and
• decode the third transmissions, to generate a third sub-codebook comprising one or more corresponding HARQ ACK bit strings each having a third length, greater than the second length.

A User Equipment (UE), comprising:

• a radio;
• and
• means for processing,
• the means for processing being configured to:
• receive one or more first transmissions;
• decode the first transmissions, to generate a first sub-codebook comprising one or more corresponding Hybrid Automatic Repeat Request Acknowledgement (HARQ ACK) bit strings each having a first length;
• receive one or more second transmissions;
• decode the second transmissions, to generate a second sub-codebook comprising one or more corresponding HARQ ACK bit strings each having a second length, greater than the first length;
• receive one or more third transmissions;
• and
• decode the third transmissions, to generate a third sub-codebook comprising one or more corresponding HARQ ACK bit strings each having a third length, greater than the second length.